Why is PackageInfo.requestedPermissions always null?

Question

I'm trying to enumerate all the permissions used by all the installed packages, however when I check the requestedPermissions property for each of my installed packages it is always null.

Answer 1

I just needed to pass the PackageManager.GET_PERMISSIONS flag to getInstalledPackages(). Here is a code snippet.

getPackageManager().getInstalledPackages(PackageManager.GET_PERMISSIONS);